Description
The MDT CORE Bottom Metal (110134BLK) is the piece that unlocks detachable magazines on your Ruger American short action. Built specifically to pair with MDT's TIMBR CORE rifle stock, it swaps out your factory floorplate arrangement and lets you feed the rifle from AICS-pattern box mags instead. That means 3, 5, and even 10-round magazines are on the table, and you can mix and match steel or polymer mags from a bunch of different makers since they all share that same AICS footprint.
Machined from anodized 6061 aluminum in a clean black finish, this is a compact part that weighs in right around 4.8 ounces, so it adds capability without any real weight penalty. The ambidextrous magazine latch is a nice touch for lefties and righties alike, letting you drop and swap mags comfortably from whichever side suits you. The trigger guard opening is cut wide on purpose too, so it clears both the factory Ruger trigger and most popular aftermarket units without a fuss.
What the CORE Bottom Metal Actually Does for Your Ruger American
The whole point here is magazine freedom. Instead of being locked into a rotary or fixed setup, you get to run whatever capacity the situation calls for, and reloads get a lot faster in the field or on the clock. Those same AICS mags will work across your other AICS-compatible rifles, which is handy if you've already got a stash of them on the shelf.
Fitment and Setup Notes for the 110134BLK
This one is designed as a drop-in fit with the MDT TIMBR CORE stock, which has the micro-chassis it needs built right in. If you're putting it into a stock that doesn't have a micro-chassis, you'll want to add pillars to get everything seated and torqued correctly. MDT recommends having their parts fitted by a qualified gunsmith, and it's worth noting the CORE Bottom Metal is dialed in for the Ruger American short action right-hand platform. It also plays nicely with the MDT Adjustable Magazine Latch if you want to fine-tune how your mags seat.
Key Specifications
- Manufacturer: MDT
- Manufacturer Part Number: 110134-BLK
- UPC: 990482712051
- Fits: Ruger American Short Action, Right Hand
- Magazine Compatibility: AICS-pattern detachable box magazines
- Material: Anodized 6061 Aluminum
- Finish / Color: Black
- Magazine Latch: Ambidextrous
- Trigger Guard: Fits factory and aftermarket triggers
- Weight: Approx. 4.8 oz
- Length: 7.81 in
- Width: 1.41 in
- Height: 3.01 in
- Stock Fitment: MDT TIMBR CORE Rifle Stock
What’s Included
- MDT CORE Bottom Metal (110134-BLK) for Ruger American Short Action
- Mounting hardware
Frequently Asked Questions
What magazines does the MDT CORE Bottom Metal use?
It's built to run AICS-pattern short action detachable magazines, which are made by a number of manufacturers in both steel and polymer. You can run 3, 5, and 10-round options depending on what you need. Since AICS is a shared standard, those same magazines will also work in your other AICS-compatible rifles.
Will the CORE Bottom Metal drop right into my factory Ruger American stock?
This part is designed for a drop-in fit with the MDT TIMBR CORE stock, which has the required micro-chassis built in. If you're using a stock without a micro-chassis, you'll need to add pillars to get proper fitment. MDT recommends having the install handled by a qualified gunsmith for best results.
Does the 110134BLK work with aftermarket triggers?
Yes. The trigger guard is cut wide enough to clear both the factory Ruger American trigger and most popular aftermarket trigger units. That gives you flexibility if you plan to upgrade the trigger down the road.
Is this bottom metal set up for left-handed shooters?
The magazine latch is ambidextrous, so you can drop and swap magazines comfortably from either side. It's a solid pick whether you're right or left-hand dominant. Just keep in mind this specific model is machined for the right-hand Ruger American short action.





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